Rock Springs Capital Management LP - Q2 2020 holdings

$3.65 Billion is the total value of Rock Springs Capital Management LP's 143 reported holdings in Q2 2020. The portfolio turnover from Q1 2020 to Q2 2020 was 15.3% .

 Value Shares↓ Weighting
NBIX BuyNEUROCRINE BIOSCIENCES INC$166,713,000
+42.7%
1,366,500
+1.3%
4.57%
-5.3%
UNH BuyUNITEDHEALTH GROUP INC$119,455,000
+59.7%
405,000
+35.0%
3.28%
+5.9%
CNC BuyCENTENE CORP DEL$83,568,000
+87.5%
1,315,000
+75.3%
2.29%
+24.4%
IRTC BuyIRHYTHM TECHNOLOGIES INC$75,444,000
+43.8%
651,000
+0.9%
2.07%
-4.7%
BPMC BuyBLUEPRINT MEDICINES CORP$74,882,000
+73.7%
960,029
+30.3%
2.05%
+15.3%
HUM BuyHUMANA INC$74,060,000
+49.7%
191,000
+21.3%
2.03%
-0.7%
ISRG SellINTUITIVE SURGICAL INC$68,380,000
-9.5%
120,000
-21.3%
1.88%
-39.9%
ZLAB BuyZAI LAB LTDadr$66,792,000
+73.0%
813,246
+8.4%
1.83%
+14.8%
ARGX BuyARGENX SEsponsored adr$64,754,000
+98.6%
287,500
+16.2%
1.78%
+31.8%
AGIO BuyAGIOS PHARMACEUTICALS INC$63,091,000
+68.5%
1,179,720
+11.8%
1.73%
+11.8%
IMMU BuyIMMUNOMEDICS INC$59,457,000
+320.1%
1,677,679
+59.8%
1.63%
+178.8%
PODD BuyINSULET CORP$56,918,000
+17.7%
293,000
+0.3%
1.56%
-22.0%
BAX  BAXTER INTL INC$55,535,000
+6.0%
645,0000.0%1.52%
-29.7%
SRPT  SAREPTA THERAPEUTICS INC$55,397,000
+63.9%
345,5000.0%1.52%
+8.7%
HCA BuyHCA HEALTHCARE INC$53,334,000
+14.2%
549,500
+5.7%
1.46%
-24.3%
EHC BuyENCOMPASS HEALTH CORP$51,557,000
-1.2%
832,500
+2.1%
1.41%
-34.5%
ACAD BuyACADIA PHARMACEUTICALS INC$51,136,000
+18.1%
1,055,000
+2.9%
1.40%
-21.7%
ALNY SellALNYLAM PHARMACEUTICALS INC$51,098,000
+23.1%
345,000
-9.6%
1.40%
-18.3%
RARE SellULTRAGENYX PHARMACEUTICAL IN$50,596,000
+52.3%
646,841
-13.5%
1.39%
+1.0%
PCRX BuyPACIRA BIOSCIENCES$48,535,000
+60.8%
925,000
+2.8%
1.33%
+6.7%
BIIB  BIOGEN INC$48,159,000
-15.4%
180,0000.0%1.32%
-43.9%
BMRN BuyBIOMARIN PHARMACEUTICAL INC$47,794,000
+48.8%
387,500
+2.0%
1.31%
-1.3%
NVAX NewNOVAVAX INC$47,559,000570,598
+100.0%
1.30%
TFX  TELEFLEX INCORPORATED$47,317,000
+24.3%
130,0000.0%1.30%
-17.5%
NVRO BuyNEVRO CORP$46,115,000
+33.3%
386,000
+11.6%
1.26%
-11.5%
NVTA BuyINVITAE CORP$45,772,000
+191.2%
1,511,127
+31.4%
1.26%
+93.1%
MRSN BuyMERSANA THERAPEUTICS INC$43,955,000
+511.5%
1,878,428
+52.3%
1.21%
+306.1%
SGEN BuySEATTLE GENETICS INC$42,480,000
+52.1%
250,000
+3.3%
1.16%
+0.9%
PTLA BuyPORTOLA PHARMACEUTICALS INC$41,488,000
+232.1%
2,306,196
+31.6%
1.14%
+120.5%
IDXX  IDEXX LABS INC$41,270,000
+36.3%
125,0000.0%1.13%
-9.6%
BGNE BuyBEIGENE LTDsponsored adr$40,506,000
+53.2%
215,000
+0.1%
1.11%
+1.6%
EW BuyEDWARDS LIFESCIENCES CORP$40,222,000
+9.9%
582,000
+200.0%
1.10%
-27.1%
FRPT BuyFRESHPET INC$39,822,000
+56.9%
476,000
+19.7%
1.09%
+4.0%
MRTX BuyMIRATI THERAPEUTICS INC$39,818,000
+51.7%
348,761
+2.1%
1.09%
+0.6%
ALGN BuyALIGN TECHNOLOGY INC$39,245,000
+76.9%
143,000
+12.2%
1.08%
+17.3%
BSX  BOSTON SCIENTIFIC CORP$38,621,000
+7.6%
1,100,0000.0%1.06%
-28.6%
PEN SellPENUMBRA INC$37,016,000
+2.0%
207,000
-8.0%
1.02%
-32.4%
EXAS  EXACT SCIENCES CORP$36,863,000
+49.9%
424,0000.0%1.01%
-0.6%
VRTX  VERTEX PHARMACEUTICALS INC$36,289,000
+22.0%
125,0000.0%1.00%
-19.1%
CHRS BuyCOHERUS BIOSCIENCES INC$36,171,000
+14.4%
2,025,275
+3.9%
0.99%
-24.2%
APLT BuyAPPLIED THERAPEUTICS INC$35,845,000
+29.7%
991,573
+17.2%
0.98%
-14.0%
ASMB SellASSEMBLY BIOSCIENCES INC$34,955,000
+57.1%
1,498,915
-0.1%
0.96%
+4.2%
ARDX BuyARDELYX INC$34,705,000
+25.9%
5,015,109
+3.4%
0.95%
-16.5%
GLPG  GALAPAGOS NVspon adr$34,526,000
+0.7%
175,0000.0%0.95%
-33.2%
EPZM BuyEPIZYME INC$33,792,000
+11.4%
2,104,084
+7.6%
0.93%
-26.1%
AMRN  AMARIN CORP PLCspons adr new$32,178,000
+73.0%
4,650,0000.0%0.88%
+14.8%
ASND  ASCENDIS PHARMA A Ssponsored adr$31,577,000
+31.3%
213,5000.0%0.87%
-12.9%
CI BuyCIGNA CORP NEW$30,212,000
+20.9%
161,000
+14.2%
0.83%
-19.7%
AMGN  AMGEN INC$29,718,000
+16.3%
126,0000.0%0.82%
-22.8%
MDGL BuyMADRIGAL PHARMACEUTICALS INC$28,796,000
+72.5%
254,268
+1.7%
0.79%
+14.5%
ADPT BuyADAPTIVE BIOTECHNOLOGIES COR$27,819,000
+83.7%
575,000
+5.5%
0.76%
+21.9%
INCY  INCYTE CORP$25,993,000
+42.0%
250,0000.0%0.71%
-5.8%
MIRM BuyMIRUM PHARMACEUTICALS INC$25,685,000
+47.6%
1,319,910
+6.2%
0.70%
-2.1%
RPRX NewROYALTY PHARMA PLC$24,275,000500,000
+100.0%
0.67%
INSP BuyINSPIRE MED SYS INC$23,060,000
+91.3%
265,000
+32.5%
0.63%
+27.1%
KRTX BuyKARUNA THERAPEUTICS INC$22,661,000
+74.9%
203,312
+13.0%
0.62%
+16.0%
ACHC  ACADIA HEALTHCARE COMPANY IN$22,608,000
+36.9%
900,0000.0%0.62%
-9.2%
RTRX BuyRETROPHIN INC$20,905,000
+149.2%
1,024,261
+78.1%
0.57%
+65.1%
ALXN NewALEXION PHARMACEUTICALS INC$20,596,000183,500
+100.0%
0.56%
COLL  COLLEGIUM PHARMACEUTICAL INC$20,563,000
+7.2%
1,175,0000.0%0.56%
-28.9%
APRE BuyAPREA THERAPEUTICS INC$20,099,000
+15.6%
518,290
+3.7%
0.55%
-23.4%
ADAP BuyADAPTIMMUNE THERAPEUTICS PLCsponds adr$19,889,000
+509.3%
1,986,910
+65.6%
0.55%
+304.4%
 CYTOKINETICS INCnote 4.000%11/1$19,082,000
+80.5%
8,000,0000.0%0.52%
+19.7%
ALLO BuyALLOGENE THERAPEUTICS INC$18,861,000
+288.1%
440,468
+76.2%
0.52%
+157.2%
HQY BuyHEALTHEQUITY INC$18,780,000
+21.7%
320,100
+5.0%
0.52%
-19.3%
ODT BuyODONATE THERAPEUTICS INC$18,512,000
+55.9%
437,231
+1.7%
0.51%
+3.5%
PHR BuyPHREESIA INC$18,424,000
+55.1%
651,500
+15.3%
0.50%
+2.9%
QURE BuyUNIQURE NV$18,345,000
-3.3%
407,133
+1.8%
0.50%
-35.9%
GBT BuyGLOBAL BLOOD THERAPEUTICS IN$18,199,000
+27.2%
288,279
+3.0%
0.50%
-15.6%
TBPH BuyTHERAVANCE BIOPHARMA INC$17,384,000
+0.3%
828,218
+10.4%
0.48%
-33.5%
ALLK BuyALLAKOS INC$17,177,000
+64.3%
239,032
+1.7%
0.47%
+9.0%
CGEN BuyCOMPUGEN LTDord$16,978,000
+112.6%
1,130,375
+2.8%
0.47%
+41.2%
MYOK BuyMYOKARDIA INC$16,688,000
+115.7%
172,716
+4.7%
0.46%
+43.1%
FUSN NewFUSION PHARMACEUTICALS INC$16,370,000937,041
+100.0%
0.45%
ARVN BuyARVINAS INC$16,148,000
+40.6%
481,468
+68.9%
0.44%
-6.7%
WST  WEST PHARMACEUTICAL SVSC INC$16,129,000
+49.2%
71,0000.0%0.44%
-1.1%
NewGOSSAMER BIO INCnote 5.000% 6/0$15,746,00015,573,000
+100.0%
0.43%
CNST BuyCONSTELLATION PHARMCETICLS I$15,496,000
+111.1%
515,680
+120.8%
0.42%
+40.3%
GH  GUARDANT HEALTH INC$15,415,000
+16.6%
190,0000.0%0.42%
-22.7%
FOLD BuyAMICUS THERAPEUTICS INC$15,334,000
+66.0%
1,016,821
+1.7%
0.42%
+10.2%
CVET BuyCOVETRUS INC$14,983,000
+8818.5%
837,500
+3949.2%
0.41%
+5771.4%
BHVN BuyBIOHAVEN PHARMACTL HLDG CO L$14,901,000
+118.9%
203,817
+1.9%
0.41%
+45.6%
JNJ  JOHNSON & JOHNSON$14,766,000
+7.2%
105,0000.0%0.40%
-28.8%
GWPH BuyGW PHARMACEUTICALS PLCads$14,732,000
+460.8%
120,043
+300.1%
0.40%
+270.6%
DVAX BuyDYNAVAX TECHNOLOGIES CORP$14,725,000
+164.8%
1,660,120
+5.4%
0.40%
+75.7%
AGLE BuyAEGLEA BIOTHERAPEUTICS INC$14,712,000
+294.6%
1,590,528
+98.8%
0.40%
+162.3%
RDUS BuyRADIUS HEALTH INC$13,674,000
+7.9%
1,003,259
+2.9%
0.38%
-28.4%
MNTA  MOMENTA PHARMACEUTICALS INC$13,308,000
+22.3%
400,0000.0%0.36%
-18.9%
TGTX NewTG THERAPEUTICS INC$13,303,000682,926
+100.0%
0.36%
PPD BuyPPD INC$13,065,000
+63.0%
487,500
+8.3%
0.36%
+8.2%
CNMD  CONMED CORP$12,958,000
+25.7%
180,0000.0%0.36%
-16.7%
FGEN BuyFIBROGEN INC$12,785,000
+20.2%
315,449
+3.1%
0.35%
-20.2%
DCPH SellDECIPHERA PHARMACEUTICALS IN$12,531,000
-9.1%
209,829
-37.4%
0.34%
-39.6%
HCAT  HEALTH CATALYST INC$12,397,000
+11.5%
425,0000.0%0.34%
-26.1%
TBIO SellTRANSLATE BIO INC$11,850,000
+44.1%
661,268
-19.8%
0.32%
-4.4%
BFAM NewBRIGHT HORIZONS FAM SOL IN D$11,544,00098,500
+100.0%
0.32%
RYTM BuyRHYTHM PHARMACEUTICALS INC$11,420,000
+50.1%
512,111
+2.4%
0.31%
-0.6%
ZGNX BuyZOGENIX INC$11,236,000
+13.6%
415,982
+4.0%
0.31%
-24.7%
IMVT BuyIMMUNOVANT INC$11,014,000
+183.1%
452,319
+80.9%
0.30%
+87.6%
RIGL BuyRIGEL PHARMACEUTICALS INC$10,793,000
+25.8%
5,897,642
+7.2%
0.30%
-16.6%
MYOV BuyMYOVANT SCIENCES LTD$10,483,000
+177.7%
508,411
+1.7%
0.29%
+84.6%
NVCR  NOVOCURE LTD$10,378,000
-11.9%
175,0000.0%0.28%
-41.5%
PRTA BuyPROTHENA CORP PLC$10,347,000
+93.4%
989,218
+97.8%
0.28%
+28.5%
IMRA SellIMARA INC$10,078,000
+41.0%
364,733
-18.2%
0.28%
-6.8%
SWAV NewSHOCKWAVE MED INC$9,356,000197,500
+100.0%
0.26%
GMDA BuyGAMIDA CELL LTD$9,216,000
+205.2%
2,016,656
+101.7%
0.25%
+102.4%
LEGN NewLEGEND BIOTECH CORPsponsored ads$8,763,000205,896
+100.0%
0.24%
PRTK BuyPARATEK PHARMACEUTICALS INC$8,640,000
+79.7%
1,655,164
+8.4%
0.24%
+19.1%
RPTX NewREPARE THERAPEUTICS INC$8,525,000274,815
+100.0%
0.23%
OBSV BuyOBSEVA SA$8,385,000
+148.5%
1,423,552
+1.7%
0.23%
+64.3%
SPRO BuySPERO THERAPEUTICS INC$8,323,000
+70.3%
615,177
+1.7%
0.23%
+12.9%
OSW BuyONESPAWORLD HOLDINGS LIMITED$8,300,000
+94.7%
1,740,000
+65.7%
0.23%
+29.5%
STAA SellSTAAR SURGICAL CO$8,000,000
+60.0%
130,000
-16.1%
0.22%
+5.8%
CHMA BuyCHIASMA INC$7,491,000
+52.0%
1,392,312
+3.1%
0.20%
+0.5%
BLU NewBELLUS HEALTH INC NEW$7,163,000696,115
+100.0%
0.20%
NGM BuyNGM BIOPHARMACEUTICALS INC$7,055,000
+63.0%
357,409
+1.8%
0.19%
+8.4%
IGMS NewIGM BIOSCIENCES INC$6,955,00095,278
+100.0%
0.19%
ANAB BuyANAPTYSBIO INC$6,852,000
+61.6%
306,713
+2.2%
0.19%
+7.4%
XENT  INTERSECT ENT INC$6,770,000
+14.3%
500,0000.0%0.19%
-24.1%
TXG  10X GENOMICS INC$6,788,000
+43.3%
76,0000.0%0.19%
-5.1%
MGNX BuyMACROGENICS INC$6,548,000
+389.0%
234,516
+2.0%
0.18%
+227.3%
XENE BuyXENON PHARMACEUTICALS INC$6,467,000
+14.1%
515,711
+3.1%
0.18%
-24.4%
BuyTRILLIUM THERAPEUTICS INC$6,170,000
+103.6%
762,618
+1.7%
0.17%
+35.2%
AKRO BuyAKERO THERAPEUTICS INC$6,055,000
+26.9%
242,985
+8.0%
0.17%
-15.7%
 INSMED INCnote 1.750% 1/1$5,861,000
+16.3%
6,000,0000.0%0.16%
-22.6%
PASG SellPASSAGE BIO INC$5,560,000
+56.9%
203,436
-9.6%
0.15%
+4.1%
BNR NewBURNING ROCK BIOTECH LTDsponsored ads$5,402,000200,000
+100.0%
0.15%
FIXX SellHOMOLOGY MEDICINES INC$5,341,000
-19.1%
351,638
-17.3%
0.15%
-46.5%
PHAS BuyPHASEBIO PHARMACEUTICALS INC$5,262,000
+41.3%
1,143,925
+1.7%
0.14%
-6.5%
GRTX BuyGALERA THERAPEUTICS INC$4,052,000
-14.7%
567,552
+13.5%
0.11%
-43.4%
NARI NewINARI MED INC$3,875,00080,000
+100.0%
0.11%
CO  GLOBAL CORD BLOOD CORPORATIO$2,868,000
-2.5%
925,0000.0%0.08%
-35.2%
 RETROPHIN INCnote 2.500% 9/1$2,713,000
+5.7%
3,250,0000.0%0.07%
-30.2%
ACRS BuyACLARIS THERAPEUTICS INC$2,663,000
+60.0%
1,644,015
+2.8%
0.07%
+5.8%
FPRX BuyFIVE PRIME THERAPEUTICS INC$2,481,000
+173.2%
406,729
+1.7%
0.07%
+78.9%
CYTK NewCYTOKINETICS INC$1,825,00077,417
+100.0%
0.05%
 NEUROCRINE BIOSCIENCES INCnote 2.250% 5/1$1,673,000
+30.0%
1,000,0000.0%0.05%
-13.2%
 THERAVANCE BIOPHARMA INCnote 3.250%11/0$1,460,000
+0.8%
1,500,0000.0%0.04%
-33.3%
 RADIUS HEALTH INCnote 3.000% 9/0$1,105,000
+3.6%
1,500,0000.0%0.03%
-31.8%
 PACIRA BIOSCIENCESnote 2.375% 4/0$1,094,000
+13.3%
1,000,0000.0%0.03%
-25.0%
BuyNABRIVA THERAPEUTICS PLC$720,000
+19.2%
1,067,664
+1.7%
0.02%
-20.0%
NewNEVRO CORPnote 2.750% 4/0$683,000500,000
+100.0%
0.02%
BMYRT  BRISTOL-MYERS SQUIBB COright 99/99/9999$663,000
-5.8%
185,1500.0%0.02%
-37.9%
XLRN ExitACCELERON PHARMA INC$0-17,500
-100.0%
-0.06%
AXNX ExitAXONICS MODULATION TECHNOLOG$0-125,000
-100.0%
-0.13%
TMO ExitTHERMO FISHER SCIENTIFIC INC$0-17,500
-100.0%
-0.20%
FTSV ExitFORTY SEVEN INC$0-447,400
-100.0%
-1.76%
Original filings

The following EDGAR filing(s) were analyzed to create this report:

  • View 13F-HR filed 2020-08-14
Signatures

The EDGAR filing(s) were signed by:

Top long-term holdings
NameQuarters ownedLatest quarter ownedMax weighting
INTUITIVE SURGICAL INC40Q3 20233.4%
NEUROCRINE BIOSCIENCES INC39Q3 20234.8%
PACIRA PHARMACEUTICALS INC39Q3 20232.6%
ULTRAGENYX PHARMACEUTICAL IN39Q3 20231.9%
ACADIA HEALTHCARE COMPANY IN38Q3 20234.4%
ASCENDIS PHARMA A/S35Q3 20231.3%
INVITAE CORP35Q3 20231.8%
BIOMARIN PHARMACEUTICAL INC35Q3 20231.3%
MACROGENICS INC35Q3 20230.5%
COLLEGIUM PHARMACEUTICAL INC34Q3 20232.1%

View Rock Springs Capital Management LP's complete holdings history.

Latest significant ownerships (13-D/G)
Rock Springs Capital Management LP Q2 2020 significant holdings filed using form 13D/G when ownership exceeds 5% of a company's total stock issue.
FiledShares Percentage
Aeglea BioTherapeutics, Inc.February 14, 20233,413,9065.6%
Compass Therapeutics, Inc.February 14, 20235,333,1884.2%
Mirum Pharmaceuticals, Inc.February 14, 20231,795,7334.9%
PhaseBio Pharmaceuticals IncSold outFebruary 14, 202300.0%
Sierra Oncology, Inc.Sold outFebruary 14, 202300.0%
ARDELYX, INC.Sold outFebruary 15, 202200.0%
CHIASMA, INCSold outFebruary 15, 202200.0%
FIVE PRIME THERAPEUTICS, INC.Sold outFebruary 15, 202200.0%
F-star Therapeutics, Inc.February 15, 2022751,8893.6%
Protara Therapeutics, Inc.Sold outFebruary 15, 202200.0%

View Rock Springs Capital Management LP's complete significant-ownership history.

Latest filings
TypeFiled
SC 13G/A2024-04-05
13F-HR2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14
SC 13G/A2024-02-14

View Rock Springs Capital Management LP's complete filings history.

Compare quarters

Export Rock Springs Capital Management LP's holdings